Update arm-4, start-tag reworked.

This reworks the heredoc start to always use @(), this since
@name is ambiguous (means virtual resource). A second reason is that it
is easier to see that @() is a complete expression that ends at the
closing ')'.
Merge branch 'master' of ssh://git@github.com/puppetlabs/armatures.git
Update arm-4 heredoc to ready for submission of 1.0

Changes the syntax for the heredoc tag to always use the form @(tag).
Update arm-2 to 1.0 status. Updates links to implementation.

The implemntation is now in a puppetlabs puppet repo branch.
Text is added that the RGEN gem is now vendored (included) in the puppet
distribution.
Merge branch 'master' of ssh://git@github.com/puppetlabs/armatures.git
Update README with status of updated arms.
We got pro-forma +1s for ARM-0 and ARM-2, marking them Completed